($ millions)
| Rank | State | Total | Exports | Imports |
|---|---|---|---|---|
| 1 | Texas | 32,696 | 18,052 | 14,644 |
| 2 | Michigan | 15,757 | 4,016 | 11,741 |
| 3 | Illinois | 6,939 | 3,004 | 3,934 |
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Transborder Surface Freight Data, 2008.